Chapter 2 Using the NetFlow Collector User Interface

Configuration

Option Data

An Option Data key builder obtains one or more key values from a flow and performs a look up using this result from an option data cache. The result of the mapping is the corresponding value from option data that was specified in the option data cache entry definition. The Option Data key builder has the following attributes.

Attribute

Description

 

 

Output name

Column name in output.

 

 

Option data map entry

ID of an option-data-map-entry element declared

 

in option-data-map in XML configuration.

 

 

Keys

ID of one or more key builders to produce values

 

corresponding with the keys in the specified

 

option-data-map-entry.

 

 

Site Name

The Site Name key builder resolves the customer site name from the input interface field. It has the following attributes:

Attribute

Output name

Field

Allow null value

Description

Column name in output.

ID of the field to obtain from a flow.

If not selected, an error is logged if a flow does not contain the indicated field

This key builder requires configuration in the config/vpn.conf file. You must include one row to correspond to each PE device VPN interface that export NetFlow packets to this NFC server. The rows in this file contains five fields, in the following order: exporting device (PE) IP address, interface name, name of the site to which this interface is connected, CE to which this interface is connected, and customer name. These fields should be separated by commas. See the following example:

172.20.98.250,FastEthernet0/1.401,vpn1-branchB,CERouter-3,Cisco 172.20.98.250,FastEthernet0/1.601,vpn2-branchB,CERouter-4,IBM 172.20.98.248,FastEthernet2/1,vpn2-branchA,CERouter-2,IBM 172.20.98.246,FastEthernet0/1,vpn1-branchA,CERouter-1,Cisco

 

Cisco NetFlow Collector User Guide

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OL-11399-01

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Cisco Systems OL-11399-01 manual Option Data, Site Name